A mini RAS - Resirculation Aquaculture System скачать в хорошем качестве

A mini RAS - Resirculation Aquaculture System

This is a small RAS at JKT HQ which is comprised of 2 IBC tanks capable of holding 20kg fish each. Tha air pump perform both tasks of aeration and water pumping, there is no need for additional water pump hence reduced energy consumption. The mechanical filter is a simple one with just a mosquito net to retain solid particles and its just efficient and reliable. The biofilter is also simple with cheap but effective biomedia made from plastic bottle caps hence a compliment to the environment. Water needs per day is 50 litres and energy consumption is just 60watts. A backup power is necessary in case of an electricity blackout. A complete system is comprised of 4tanks capable of 80kg fish at once and can give you up to 300kg per year. If you want to go commercial you will need several stand alone systems of that kind depending on the size of the investment (say 12 systems each 4tanks, gives you up to 3tons of fish a year) The system is friendly to the environment as there is no need for site clearance nor excavation. It is suitable for urban areas as only a small piece of land is required and very little amount of water and little labour. For now the system costs 3m to install excluding transport costs and backup power.